plan. get the 4glte droid razr by motorola for $99.99. verizon. >>> in southern california a 31- acre brush fire is now under control. started about 4:00 this afternoon in the hills. dry and hot conditions made it tough to fight the fire. but luckily it burned in a rural area and was never a real threat to people. >>> ktvu's david stevenson tells us why critical mass are expecting 2,000 cyclists. >> reporter: critical mass is expecting people from all over the country. >> when critical mass started bicycling was not a mainstream thing. if you were cycling you were often harassed. >> the whole idea of critical mass is not that it's a protest but a community. like a bubble of safety moving through traffic. >> reporter: it has inspired similar events throughout the world and played a part in the explosive world of bay area cycling and its emergence as a political force. today 3-1/2% of all commuters use bikes each day in san francisco. >> they get in your way, they go all in between traffic, and i think it disrupts a lot of traffic. >> reporter: 2,000 cyclists are expected for critical m
